Tin machine



. 1930. J. R. DOUGAN 1,779,358

TIN MACHINE Filed Nov. 12, 1928 2 Sheets-Sheet l J. R. DOUGAN Oct. 21, 1930.

TIN MACHINE Filed Nov. 12, 1928 2 Sheets-Sheet 2 gwuanto o Patented Oct. 21, I930 Parent )GFFICiE;

a L Jenn, ninononn on cenoivsmme rnNivsYLvANI ,Inssrelvoiemo con'rinnn'mncA v,

- 11m, 011 runwvoB-n, N., Y.,,A1CORP.0BATION or NEW, YORK Application fllediliovember 1 2, 1928: Serial mi. 318 8701 The: inventionrrelates to new and useful:- improvements: intin machines: for coat1ngmetal plates: with tin, andi moreipartlcularly to the: driving mechanism too the 1 feed: rolls '5;of'the"tin=machine:. H I It is -customaryrto provide the -v;teed:rolls':ot

a tin machine withiintermeshinggears for ositivelyr v actuating the; 7 feed: rolls. The gears-'areall located within the ztin p otaandiit 10a is: well known that i the gear; running: 1'11 the;

which it' meshes, and: this carries theamoltem tin: ontmthe driving gear; which actuates; the gears associated? with the. feed: roll s=; llhe fiatin sets on the driving gear and 1t 1s otten neCeSsaryJtmremOve the gear. ton-the pun-pose oftcuttingraway,the-tin; a

Anobjectfott-he presentinvention is to pro-i vide a driving mechanism. for the .1 feed: tolls.

which feeds: the, sheets through; the tim mas chinewithi means: for preventing the molteni tinv carniedl up) by the 1 gears; associated with;

the afieed rolls -.fr.om.= accumulatingandjsettingz on the actuating means ton saipdi gears. '2 A; fiinther: obj eat-of: thevinvientioniis ;t.o ipro" vide a: driving'meelianismi oftther ab'oveitypez wherein the. gears associated with the. feed; rolls: are driven byvadriving gear sp acedxfrom and?connected;to the gean associated withithe" 3.41; uppermost feed; rolls? that. the molten; tint carried up: by. the gears. associated: with the feed-1 rolls: is prevented from ancumulati-ng: and sett ingionithe driving gear;

stilli further 'obj ect at: he invention is to v provide an driving mechanism: at theabovetypewith meanslocated in the space lo'etweenthedritinggearand the gearassooi'atedwith the uppermost rolls on which: the molten tin carried? upIBy" the gearsa'couinu'lates; and iscausedfhygravity to drop back into the tin ot; i These. and, t er o it Gi e ll? i part] be ob.- vion's, andwilli part. be. hereinafter. more; fully disclosedgfl I a r In the. drawings which. how by: way. 01% i1;- lustnation: one; embodiment, of; the invention,-:--

Hig 1 'isia (vertical, sectional] View on? the;

59; line: 11-11 of; Fig. through-awpontion 1 of a tin;

machine having the improved driving 'mech-; anism forcthefeed rolls embodied thereina Eig; 2; is a;vie.wshowing more or less diar grammatically the feed rolls, the housing for supportingthesame the'iactuating gears asso'oiatedxwith the feed'rolls, and theidriving gean therefor: V v i v v 1 7 Fig.1 3;,is; an enlarged; view in vertical; section: of the; gear associated with "the topmost feed rolls and the driving gear; spaced from 60 moltemtinnwillitakenup:timontozthegeanwith. Y

and]connectedthereto, 1 v

Fig; 4 is'z ani enlarged detail in section;

through; agportion otthe gears shown in Fig:,3}. v i I Y a i v Theainven-tion isdiTected to a: tin machine 0 andamore particularly. to the driving mechanism for-the feed; rolls. The ting machine is ofthe usualwconstruotion andiincludes a tin pot llll: which; is maintained a: bath of molten tin; on thersurface otwhich is an oil bath. Extending: intmthe oilibath and; thewmolten tinw is a housing; car nying pairs of fQQd' IOllSQ which receire andfeed thesheetsiin succes 1 sion-r through! the; tin: machine. These feed rolls. are positively-actuated, bya': trainof gears which are intermeshed; and; the lower mostgearof the traimextendsdown into the moltenitin The uppermost gear of the train extends partway into;- theuoil loath. V This train of gears associated with the feed rolls is driven by a gear which is'spacedfirom but conneotedmo, the gear associatedwith the-topmostrolls. 1 Therefore; thisdrivihggear ex: tendsintothe. oil bath Between the gears theneii's anannularspaceand at the'bottom of this; annular" space 1 there; is; I as V-shap'edirib. An; openat ijng gear meshesgwith this driving gear; Any-tin carriediup, by; the intermesh ing; train of; gears; onto the gear associated: with theiuppenfeed rolls andrunningoif into the: .e,ess betweenit liezdriven gear and the driyingi 'geanwill accumulate on said. V shaped rib; and' as thisruns in the hot oil it will drop thenefrom bacli into the tin bath. a i V Referring -more in' -detail to i the drawings: thetimpotis indicated atnli and:is of the usual,

a construction: I The, metal: line is indicated; at:

on a shaft carrying one of the rolls 3. Atthe opposite end of this pair of feed rolls there" are intermeshing gears so that both feed rolls are positively driven. The intermediate feed rolls 4, 4 are driven by a gear 7 which meshes with the gear 6. There are also intermeshing gears at the opposite ends of these rolls 4, 4 so that both feed rolls are positively driven. The upper feed rolls 5, 5 are driven by a gear 8which meshes with the gear 7. At the opposite ends of the rolls 5, 5 there are intermeshing gears so that both of these rolls are positively driven. The gears 6, 7, and 8 make up a train of gears which are the driven gears for actuating the feed rolls. The lowermost gear- 6 extends into the oil bath and the uppermost ge'ar8 extends above the oil bath.

Associated with the uppermost gear 8-is a driving gear 9; As shown in the drawings, it is formed'integral therewith'and the two gears are mounted on the shaft carrying one of the feed rolls 5. The driving gear 9 is spaced from the driven gear 8. The annular space between the gears is indicated at 10 in the drawings. Located in this annular space is an annular rib 11 which, as shown in the drawings, is V-shaped in cross section.

The driving gear 9 is operated by a. gear 12 carried by a shaft l3'mounted in a suitable bracket 14 carried by the frame of the tin machine. This shaft 13 may be actuated in any suitable way. The gear 12 meshing with the gear9 drives said gear. This becomes the driving gear of the train of mechanism for actuating the feed rolls.

In the operation of the machine, the molten tin is carried up by the teeth of the gear 6 onto the gear 7 and will be carried up by the teeth of the gear 7 onto the gear 8. The gear 8 runs in part in the bath of hot oil. The tin on the gearS will be maintained in a molten condition. Any tin accumulating on the gear 8 and flowing over into the recess 10will follow the line of arrows in Fig; 4. Thus it is that the molten tin will flow out on the V-shaped rib, and as this rib passes beneath the surface of the hot oil the molten tin will drop from the vertex of the V-shaped'rib back into the hot bath and through the oil back into the tin bath. This recess and V-shaped rib prevent any possible passing of the molten tin onto the teeth of the driving gear 9, and of course, prevent thereby any molten tin being carried up onto'and setting on the driving gear 12.

It will be apparent, therefore, by the improvements described that means has been provided for preventing tin from being carried up from the tin bath onto the driving gear above the oil bath and setting thereon, requiring a taking out ofgthe gear and the cutting of the set tin from the gear. I The driving gear above the oil bath is freed from the tin carriedup by the train of gears on the H feed rolls, and therefore, the tin machine may" be operated continuously without-"shutting downto change the driving gears for the feed rolls.

a I It will be obviousthat other ways may be provided for preventing the tin from being carried up by the driving gears from the-tin bath onto the driving gear above the oil bath without departing from the spirit of the in-; vention as set forth in the appended claims.

Having thus described my, invention'what I claim'as new: and desire'to seeureby Letters .Patentis: I

1 l. In a tin machine the combination of feed 1 rolls for feeding the sheets,-,intermeshing gears for positively rotating said rolls, means for actuating said gears, and means for 001- lectlng the molten tin carrled .up by the driving gears on said rolls and for'directing the same away from the actuating means for said gears. I I

2. In a tin machine the combination of feed rolls for feeding the sheets, intermeshing gears for positively rotating said rolls, an

independent driving gear connected to said feed roll gears for actuating the same, and means for collecting the molten tin carried up by the driving gears on said'rolls and for directing thesame away from the actuating means for said gears.

3. In a tin machine the combination offeed rolls for feeding the sheets, a train of inter meshing driven gearsfor positively rotatingsaid rolls, a driving gearxspaced from'and' connected to the drivengear associated with the uppermost feed rolls, means for actuating said driving gear, and means located in the space between said gears for'preventing molten tin carried up by the train of gears as sociated with the feed rolls from accumulating and setting on the driving gears for said train.

4c. In a tin machine the combination of feed rolls for feeding'the sheets, a train'of intermeshing driven gears for positively-rotating said .rolls, a driving gear spaced from and.

connectedto the driven gear associated with the uppermost feed rolls, means for actuating said driving gear, an outwardly projecting V-shaped annularrib located in the space between said gears on which the molten tin carried up by ,the train ofjgears accumulates and from which it passes back into the tin bath;

5. In a tin machine the combination of a tin pot adapted to contain a tin bath having an oil bath resting 011 the tinbath, feed rolls for feeding the sheets, the lowermost rolls being disposed adjacent the tin bath and the uppermost rolls being. disposed so as to be partially immersed in the'oil bath, a train of gears associated with the feed rolls Vfor ro tating the same, a driving gear spaced from and connected to thedriven gear of the up; w permost feed rolls, a V-shaped outwardly pro- 1 jecting annular rib located centrally of said space and partially immersed in the oil bath, a driving gear meshing with said spaced driving gear for actuating the same and the train of driven gears connected to said rolls,

said V-shaped rib operating to receive the Vmolten tin carried up by the train ofdriven gears for directing said molten tin away from the driving gear and back into the tin bath.

In testimony whereof, I afiix my signature.

' .7 J OHN R. DOUGAN. 

